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Finding the Fourth Proportional to 15,948.48, 22,008.80 and 8,874.80

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Solution

The fourth proportional to 15,948.48, 22,008.80 and 8,874.80 is: 12,247.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,948.48 : 22,008.80 = 8,874.80 : x
  2. Step 2: Convert to fraction form
    15,948.48/22,008.80 = 8,874.80/x
  3. Step 3: Cross multiply
    15,948.48x = 22,008.80 × 8,874.80
  4. Step 4: Simplify right side
    15,948.48x = 195,323,698.24
  5. Step 5: Solve for x
    x = 195,323,698.24/15,948.48
  6. Step 6: Final answer
    x = 12,247.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.